ankylosis

also n.

1. Anatomy. The consolidation of bones or their parts to form a single unit.
2. Pathology. The stiffening and immobility of a joint as the result of disease, trauma, surgery, or abnormal bone fusion.

[New Latin, from Greek ankulōsis, stiffening of the joints, from ankuloun, to crook, bend, from ankulos, crooked, bent.]

ankylotic an'ky·lot'ic (-lŏt'ĭk) adj.

(ang′kilō′sis)
n

An abnormal fixation and immobility of a joint.

Loss of movement in a joint, usually from arthritis, but also from sports injuries, such as fractures that involve joint surfaces. During healing of the fracture, the moving parts may fuse with the broken parts. Prolonged immobility may also cause ankylosis.

Abnormal immobility and consolidation of a joint.
Ankylosis may be caused by destruction of the membranes that line the joint or by faulty bone structure. It is most often a result of chronic arthritis, in which the affected joint tends to assume the least painful position and may become more or less permanently fixed in it.
Artificial ankylosis (arthrodesis), locking of a joint by surgical operation, is sometimes done in treatment of a severe joint condition.

• bony a. — union of the bones of a joint by proliferation of bone cells, resulting in complete immobility.
• extracapsular a. — that caused by rigidity of surrounding parts.
• false a., fibrous a. — reduced joint mobility due to proliferation of fibrous tissue.
• inherited multiple a. — calves are affected at birth and cause fetal dystocia. The legs are bent and fixed in flexion, and there is some deformity of the spine. In one breed of cattle there is a combination of ankylosis and cleft palate.
• intracapsular a. — that caused by rigidity of structures within the joint.
• spontaneous a. — occurs in the intertarsal and tarsometatarsal joints of horses. Called also bone spavin.
• spurious a. — extracapsular ankylosis.
• stapedial a. — fixation of the footplate of the stapes in otosclerosis, causing a conductive hearing loss.
• surgical a. — performed to immobilize a painful joint or to correct excessive mobility, e.g. carpal ankylosis carried out on large birds as a deflighting procedure.
• true a. — bony ankylosis.

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Dansk (Danish)
n. - ankylose, sammenvoksning

Nederlands (Dutch)
gewrichts- verstijving

Français (French)
n. - ankylose

Deutsch (German)
n. - Gelenkversteifung

Ελληνική (Greek)
n. - (ιατρ., μτφ.) αγκύλωση

Italiano (Italian)
anchilosi

Português (Portuguese)
n. - ancilose (f) (Med.)

Русский (Russian)
анкилоз

Español (Spanish)
n. - anquilosis, endurecimiento articular

Svenska (Swedish)
n. - ankylos

中文（简体）(Chinese (Simplified))
骨骼坚固或粘合, 关节僵硬

中文（繁體）(Chinese (Traditional))
n. - 骨骼堅固或粘合, 關節僵硬

한국어 (Korean)
n. - 관절 강직

日本語 (Japanese)
n. - 強直

العربيه (Arabic)
‏(الاسم) تصلب المفصل ا التصاقه‏

עברית (Hebrew)
n. - ‮איחוי בין עצמות, קישיון המיפרק, קשחת‬

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